Matoury
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Matoury Weather in September

Matoury in September sees very high temperatures, with highs around 32°C (90°F) and overnight lows of 24°C (75°F). It's the driest month of the year, with very little rainfall to worry about.

Rainfall in Matoury in September

Conditions tend to be dry and settled, making it a good month for outdoor plans. Historically, approximately 4 days this month are expected to have rain, averaging 62 mm (2.4 in). When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.

Temperature in Matoury in September

If you're visiting Matoury in September, expect highs of 32°C (90°F) and overnight lows around 24°C (75°F). It's usually most comfortable outside during the morning and later in the day. With lows around 24°C (75°F), the nights are warm enough that a sheet is usually all you need for bedding.

Sunshine in Matoury in September

With approximately 255 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Wind Speed in Matoury in September

Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

Average water temperature in September

At 28°C (82°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Matoury.

Matoury Temperature in September

Min Temperature
24°C (75°F)
Max Temperature
32°C (90°F)
Water Temperature
28°C (82°F) *
Chance of Rain
15%
Precipitation
62 mm (2.4 in)
Rainy days
4 days
Humidity
71% *
Windspeed
3 m/s (6 knots) *
Sunshine
255 hours *
Percentage Sunshine
*
* Data from: Cayenne, French Guiana (4 KM, 2 Miles).

Matoury Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Matoury - and find the best time to visit.

Daily Historical Temperatures

46-year average (1976-2025)

Based on our historical records, temperatures in Matoury typically stay consistent throughout September, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 23°C (73°F).

Average temperatures in September

Daily Historical Precipitation

46-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

Historical weather records for Matoury in September

Browse day-by-day weather records for Matoury spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Matoury historical weather extremes in September

Our historical data for Matoury spans 1992 to 2026, revealing these weather extremes.

  • The warmest day in September was on September 12, 1995, with a maximum of 36°C (97°F).
  • The coldest September day was on September 26, 1999, with a maximum of 26°C (79°F).
  • Matoury registered its coldest September night on September 11, 1997, with temperatures dropping to 20°C (68°F).

Best Places in French Guiana in September

Find out more about the weather in French Guiana and which places have the best travel conditions in this month. See all of French Guiana in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Matoury in September

Warm but pleasant conditions in Matoury in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. Expect water temperatures of around 28°C (82°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Matoury in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    9/10
  • Cycling
    8/10
  • Walking
    8/10
  • Camping
    8/10
  • Outdoor sports
    8/10

Matoury 3-Day Forecast

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

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